One-lock three-linkage tripod

Abstract

A one-lock three-linkage tripod comprises a triangular seat (1), three telescopic supporting legs (2) annularly arrayed on the triangular seat (1) and a linkage mechanism (3) controlling linkage of the three telescopic supporting legs (2), and each telescopic supporting leg (2) comprises a fixed rod section (4), a first telescopic rod section (5) and a second telescopic rod section (6) which are sequentially connected from top to bottom. The first telescopic guide sleeve (7) is provided with a locking control mechanism (11), and the second telescopic guide sleeve (8) is provided with a pair of lower locking blocks (12) linked with the locking control mechanism (11). The utility model has the advantages that the structure is simple, the fixed rod section, the first telescopic rod section and the second telescopic rod section are linked and synchronously locked with the pair of lower locking blocks through the locking control mechanism, and the adjustment is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of tripods, in particular to a one-lock three-linkage tripod. Background Art

[0002] At present, a camera tripod is used to fix and adjust the height and level of a camera to facilitate photographing. The telescopic rods of existing tripods are mostly independently controlled at each rod section, resulting in cumbersome adjustment steps during use and a poor user experience. Utility Model Content

[0003] The purpose of the utility model is to provide a one-lock three-link tripod in view of the above-mentioned shortcomings.

[0004] The utility model comprises a triangular seat, three telescopic legs in an annular array on the triangular seat and a linkage mechanism for controlling the linkage of the three telescopic legs, wherein the telescopic legs comprise a fixed rod section, a first telescopic rod section and a second telescopic rod section which are sequentially connected from top to bottom, two ends of the first telescopic rod section are respectively provided with a first telescopic guide sleeve connected to the fixed rod section and a second telescopic guide sleeve connected to the second telescopic rod section, the fixed rod section is provided with a fixed guide sleeve block matched with the first telescopic rod section, the second telescopic rod section is provided with a movable guide slider matched with the first telescopic rod section, the three fixed guide sleeve blocks are respectively connected with the linkage mechanism; the first telescopic guide sleeve is provided with a locking control mechanism, and the second telescopic guide sleeve is provided with a pair of lower locking blocks linked with the locking control mechanism.

[0005] The fixed rod section and the first telescopic rod section are both assembled by two round tubes in parallel. The top end of the fixed rod section is hinged on the triangular seat through a connecting seat. The fixed guide sleeve block is fixedly connected to the bottom end of the fixed rod section. The fixed guide sleeve block is provided with a first telescopic rod section guide hole, the first telescopic guide sleeve is provided with a fixed rod section guide hole, and the second telescopic guide sleeve is provided with a second telescopic rod section guide hole.

[0006] The locking control mechanism includes an upper locking block, a locking buckle, a pull rod connecting slider and a tensioning slider. The locking buckle is provided with a pin. The upper locking block and the locking buckle are respectively located at the front and rear sides of the first telescopic guide sleeve and are connected by a tension rod.

[0007] The first telescopic guide sleeve is respectively provided with a pull rod connecting slider installation slot and a tensioning slider installation slot, the pull rod connecting slider and the tensioning slider are respectively sleeved on the tension rod and located in the corresponding pull rod connecting slider installation slot and the tensioning slider installation slot, and the pull rod connecting slider and the tensioning slider are respectively provided with matching wedge-shaped inclined surfaces;

[0008] The lower locking block and the pull rod connecting slider are connected by a pair of pull rods, and the pair of pull rods are respectively located in the two round tubes of the first telescopic rod section. The second telescopic guide sleeve is provided with two lower locking block mounting grooves, and a pair of lower locking blocks are symmetrically movably installed in the lower locking block mounting grooves, and the lower locking block mounting grooves and the lower locking blocks are respectively provided with matching wedge-shaped inclined surfaces.

[0009] A support foot is provided at one end of the bottom of the second telescopic rod section, and a pad foot is detachably connected to the support foot, the pad foot comprises a circular pad block and an elastic locking pull ring, a hinge support is provided on the circular pad block, and a hinge shaft is provided on the hinge support, the elastic locking pull ring is movably connected to the hinge support through the hinge shaft, a pull ring locking groove used in conjunction with the elastic locking pull ring is provided on the top of the support foot, a support foot limiting slot used in conjunction with the hinge shaft is provided at the bottom of the support foot, and conical sharp corners are respectively provided at the bottom of the support foot located on both sides of the support foot limiting slot.

[0010] An anti-slip rubber pad is provided at the bottom of the circular pad.

[0011] A joint ball is arranged in the middle of the hinge shaft, and a spherical groove used in cooperation with the joint ball is arranged in the support foot limit slot.

[0012] The linkage mechanism comprises a connecting ring and three linkage rods. The bottom of the connecting ring is provided with three hinge grooves matched with the linkage rods. The two ends of the linkage rods are respectively hinged with the connecting ring and the corresponding fixed guide sleeve blocks.

[0013] The utility model has the advantages of simple structure, the fixed rod section, the first telescopic rod section and the second telescopic rod section are synchronously locked through the locking control mechanism and a pair of lower locking blocks, and the adjustment is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the retractable leg structure.

[0016] Figure 3 It is a schematic diagram of the exploded structure of the retractable legs.

[0017] Figure 4 It is a schematic diagram of the locking control mechanism structure.

[0018] Figure 5 It is a schematic diagram of the exploded structure of the locking control mechanism.

[0019] Figure 6 It is a schematic diagram of the structure of the pull rod connecting the slider and the tensioning slider.

[0020] Figure 7 It is a structural schematic diagram of the lower locking block and the second telescopic guide sleeve.

[0021] Figure 8 It is a schematic diagram of the exploded structure of the support legs and pads.

[0022] Fig. 9 It is a schematic diagram of the linkage mechanism structure. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, if the terms "first", "second", etc. appear in the description of the present utility model, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] As shown in the accompanying drawings, the utility model includes a triangular seat 1, three retractable legs 2 in a circular array on the triangular seat 1, and a linkage mechanism 3 for controlling the linkage of the three retractable legs 2. The retractable legs 2 include a fixed rod section 4, a first telescopic rod section 5, and a second telescopic rod section 6 connected in sequence from top to bottom. Both ends of the first telescopic rod section 5 are respectively provided with a first telescopic guide sleeve 7 connected to the fixed rod section 4 and a second telescopic guide sleeve 8 connected to the second telescopic rod section 6. The fixed rod section 4 is provided with a fixed guide sleeve block 9 matched with the first telescopic rod section 5, and the second telescopic rod section 6 is provided with an active guide slider 10 matched with the first telescopic rod section 5. The three fixed guide sleeve blocks 9 are respectively connected to the linkage mechanism 3; the first telescopic guide sleeve 7 is provided with a locking control mechanism 11, and the second telescopic guide sleeve 8 is provided with a pair of lower locking blocks 12 linked with the locking control mechanism 11.

[0028] One end of the top of the fixed rod section 4 is hinged on the triangular seat 1 for expanding its opening angle. The linkage mechanism 3 is connected to one end of the bottom of the three fixed rod sections 4, namely, the fixed guide sleeve 9. When one of the fixed rod sections 4 rotates, the linkage mechanism 3 drives the other two fixed rod sections 4 to perform synchronous expansion or contraction actions.

[0029] The first telescopic rod section 5 can be smoothly pulled out or retracted on the fixed rod section 4 through the cooperation of the first telescopic guide sleeve 7 and the fixed guide sleeve block 9, and the second telescopic rod section 6 can be smoothly pulled out or retracted on the first telescopic rod section 5 through the cooperation of the second telescopic guide sleeve 8 and the movable guide slider 10.

[0030] The locking control mechanism 11 is linked with the lower locking block 12. After being released, the first telescopic rod section 5 and the second telescopic rod section 6 can be freely telescopically adjusted. Conversely, after being locked, the first telescopic rod section 5 and the second telescopic rod section 6 are synchronously locked and fixed.

[0031] Preferably, the fixed rod section 4 and the first telescopic rod section 5 are both composed of two round tubes assembled in parallel, the second telescopic rod section 6 is a single tube, the first telescopic rod section 5 is located between the two round tubes of the fixed rod section 4, and the second telescopic rod section 6 is located between the two round tubes of the first telescopic rod section 5. The upper part is arranged in parallel with double tubes, and cooperates with the fixed guide sleeve block 9 and the second telescopic guide sleeve 8 to make its telescopic support more stable.

[0032] The top end of the fixed rod section 4 is hinged on the triangular seat 1 through a connecting seat 14, and the fixed guide sleeve block 9 is fixedly connected to the bottom end of the fixed rod section 4. The fixed guide sleeve block 9 is provided with a first telescopic rod section guide hole, the first telescopic guide sleeve 7 is provided with a fixed rod section guide hole, and the second telescopic guide sleeve 8 is provided with a second telescopic rod section guide hole.

[0033] Preferably, the locking control mechanism 11 includes an upper locking block 15, a locking buckle 16, a pull rod connecting slider 17 and a tensioning slider 18. The locking buckle 16 is provided with a pin 22. The upper locking block 15 and the locking buckle 16 are respectively located at the front and rear sides of the first telescopic guide sleeve 7 and are connected by a tension rod 21.

[0034] The first telescopic guide sleeve 7 is respectively provided with a pull rod connecting slider installation groove 23 and a tightening slider installation groove 24, the pull rod connecting slider 17 and the tightening slider 18 are respectively installed in the pull rod connecting slider installation groove 23 and the tightening slider installation groove 24, the pull rod connecting slider 17 and the tightening slider 18 are respectively provided with matching wedge-shaped inclined surfaces, and the pull rod connecting slider 17 and the tightening slider 18 are both provided with a tensioning rod 21 avoidance hole.

[0035] The lower locking block 12 and the pull rod connecting slider 17 are connected by a pair of pull rods 13, and the pair of pull rods 13 are respectively located in the two round tubes of the first telescopic rod section 5. The second telescopic guide sleeve 8 is provided with two lower locking block mounting grooves 31. A pair of lower locking blocks 12 are symmetrically mounted in the lower locking block mounting grooves 31, and the lower locking block mounting grooves 31 and the lower locking block 12 are respectively provided with matching wedge-shaped inclined surfaces.

[0036] The connecting part of the locking buckle 16 is a cam locking structure. The locking buckle 16 rotates to apply a backward pulling force to the tensioning rod 21, that is, to pull the upper locking block 15 backward, so that the upper locking block 15 is tightly attached to the round tube of the fixed rod section 4, and cooperates with the first telescopic guide sleeve 7 to lock the fixed rod section 4; while the locking buckle 16 applies a backward pulling force to the tensioning rod 21, there will be a reverse forward thrust on the tensioning slider 18. When the tensioning slider 18 moves horizontally forward, the pull rod connecting slider 17 is lifted upward through the wedge-shaped inclined surface. The pull rod connecting slider 17 lifts up a pair of lower locking blocks 12 through a pair of pull rods 13. In the process of lifting the pair of lower locking blocks 12, the second telescopic rod section 6 is clamped by cooperating with the wedge-shaped inclined surface of the lower locking block mounting groove 31.

[0037] Furthermore, a support foot 25 is provided at one end of the bottom of the second telescopic rod section 6, and a pad foot 27 is detachably connected to the support foot 25, the pad foot 27 includes a circular pad block 28 and an elastic locking pull ring 29, a hinge support 40 is provided on the circular pad block 28, and a hinge shaft 32 is provided on the hinge support 40, the elastic locking pull ring 29 is movably connected to the hinge support 40 through the hinge shaft 32, a pull ring locking groove 33 used in conjunction with the elastic locking pull ring 29 is provided at the top of the support foot 25, a support foot limiting slot 34 used in conjunction with the hinge shaft 32 is provided at the bottom of the support foot 25, and conical sharp corners 35 are respectively provided at the bottom of the support foot 25 located on both sides of the support foot limiting slot 34.

[0038] An anti-skid rubber pad 36 is provided at the bottom of the circular pad 28 .

[0039] A joint ball 42 is provided in the middle of the hinge shaft 32 , and a spherical groove for cooperating with the joint ball 42 is provided in the support leg limiting slot 34 .

[0040] The supporting leg 25 is provided with a connecting tube connected to the second telescopic rod section 6 for being plugged into the second telescopic rod section 6 .

[0041] The foot 25 can be used alone and can prevent sliding when supported by its tapered tip 35 in contact with the ground.

[0042] The elastic locking ring 29 is made of elastic plastic material and has good elasticity. When the pad foot 27 is in use, it is clamped on the support foot 25 through the elastic locking ring 29. Through the cooperation of the joint ball 42 and the spherical groove, the entire pad foot 27 can be adjusted in angle on the support foot 25, so that the pad foot 27 can adjust its angle by itself and be close to the ground when supporting.

[0043] Preferably, the linkage mechanism 3 includes a connecting ring 37 and three linkage rods 38. The bottom of the connecting ring 37 is provided with three hinge grooves matching with the linkage rods 38. The two ends of the linkage rods 38 are respectively hinged to the connecting ring 37 and the corresponding fixed guide sleeve block 9.

[0044] One end of the linkage rod 38 is hinged in a hinge groove at the bottom of the connecting ring 37 . The hinge groove has an opening at the bottom and one side, that is, the hinge groove can limit the maximum upward rotation angle of the linkage rod 38 .

Claims

1. A one-lock three-link tripod, characterized in that The invention comprises a triangular seat (1), three telescopic legs (2) in a circular array on the triangular seat (1), and a linkage mechanism (3) for controlling the linkage of the three telescopic legs (2); the telescopic legs (2) comprise a fixed rod section (4), a first telescopic rod section (5), and a second telescopic rod section (6) which are sequentially connected from top to bottom; two ends of the first telescopic rod section (5) are respectively provided with a first telescopic guide sleeve (7) connected to the fixed rod section (4) and a second telescopic guide sleeve (8) connected to the second telescopic rod section (6); the fixed rod section (4) is provided with a fixed guide sleeve block (9) matched with the first telescopic rod section (5); the second telescopic rod section (6) is provided with a movable guide slider (10) matched with the first telescopic rod section (5); the three fixed guide sleeve blocks (9) are respectively connected to the linkage mechanism (3); the first telescopic guide sleeve (7) is provided with a locking control mechanism (11), and the second telescopic guide sleeve (8) is provided with a pair of lower locking blocks (12) linked with the locking control mechanism (11).

2. The one-lock three-link tripod according to claim 1, characterized in that The fixed rod section (4) and the first telescopic rod section (5) are both assembled from two circular tubes in parallel. The top end of the fixed rod section (4) is hinged on the triangular seat (1) through a connecting seat (14). The fixed guide sleeve (9) is fixedly connected to the bottom end of the fixed rod section (4). The fixed guide sleeve (9) is provided with a first telescopic rod section guide hole. The first telescopic guide sleeve (7) is provided with a fixed rod section guide hole. The second telescopic guide sleeve (8) is provided with a second telescopic rod section guide hole.

3. The one-lock three-link tripod according to claim 2, characterized in that The locking control mechanism (11) comprises an upper locking block (15), a locking buckle (16), a pull rod connecting slider (17) and a tensioning slider (18). The locking buckle (16) is provided with a pin shaft (22). The upper locking block (15) and the locking buckle (16) are respectively located at the front and rear sides of the first telescopic guide sleeve (7) and are connected by a tensioning rod (21). The first telescopic guide sleeve (7) is provided with a pull rod connecting slider installation groove (23) and a tensioning slider installation groove (24), respectively. The pull rod connecting slider (17) and the tensioning slider (18) are respectively sleeved on the tensioning rod (21) and located in the corresponding pull rod connecting slider installation groove (23) and the tensioning slider installation groove (24), and the pull rod connecting slider (17) and the tensioning slider (18) are respectively provided with matching wedge-shaped inclined surfaces; The lower locking block (12) and the pull rod connecting slider (17) are connected by a pair of pull rods (13), and the pair of pull rods (13) are respectively located in two round tubes of the first telescopic rod section (5). The second telescopic guide sleeve (8) is provided with two lower locking block mounting grooves (31), and a pair of lower locking blocks (12) are symmetrically mounted in the lower locking block mounting grooves (31). The lower locking block mounting grooves (31) and the lower locking block (12) are respectively provided with matching wedge-shaped inclined surfaces.

4. The one-lock three-link tripod according to claim 1, characterized in that A support foot (25) is provided at one end of the bottom of the second telescopic rod section (6), and a pad foot (27) is detachably connected to the support foot (25), the pad foot (27) comprising a circular pad block (28) and an elastic locking pull ring (29), a hinge support (40) is provided on the circular pad block (28), and a hinge shaft (32) is provided on the hinge support (40), the elastic locking pull ring (29) is movably connected to the hinge support (40) via the hinge shaft (32), a pull ring locking groove (33) used in conjunction with the elastic locking pull ring (29) is provided at the top of the support foot (25), a support foot limiting groove (34) used in conjunction with the hinge shaft (32) is provided at the bottom of the support foot (25), and conical sharp corners (35) are provided at the bottom of the support foot (25) located on both sides of the support foot limiting groove (34).

5. The one-lock three-link tripod according to claim 4, characterized in that The bottom of the circular pad (28) is provided with an anti-skid rubber pad (36).

6. The one-lock three-link tripod according to claim 4, characterized in that A joint ball (42) is provided in the middle of the hinge shaft (32), and a spherical groove for use with the joint ball (42) is provided in the support foot limit slot (34).

7. The one-lock three-link tripod according to claim 1, characterized in that The linkage mechanism (3) comprises a connecting ring (37) and three linkage rods (38). The bottom of the connecting ring (37) is provided with three hinge grooves matching the linkage rods (38). The two ends of the linkage rods (38) are respectively hinged to the connecting ring (37) and the corresponding fixed guide sleeve (9).

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